00498nam a2200193Ia 4500008004100000041001200041082000800053082001100061100002200072100002200094100001100116245007900127260001300206260002200219260000900241300001500250365002500265650001400290150909s9999    xx            000 0 und d  aEnglish  a540  bGUD/AN  aGudzinowicz B.J    aGudzinowicz M.J    eAuthor  aAnalysis of drugs and metabolites by gas chromatography- mass spectrometry  aNew York  bMarcel Dekker Inc  c1978  a457  Pages  aRs.152                aChemistry